Apple's new iPhones use AI 'Portrait Lighting' to improve shots

One smartphone feature that has steadily improved over the years is the camera. Once a novelty, the camera is now an important selling point that can influence a person's buying choice. Engadget recently had the opportunity to test the top camera-enabled smartphones at Nokia's Tampere, Finland research and development complex and found that the iPhone outperforms most, but not all, of the competition.

The Engadget team was able to test the iPhone 5 against the Nokia PureView 808, HTC One X, Samsung Galaxy S III and a prototype Nokia Lumia 920. The top performers in their low-light tests were the Lumia 920 and PureView 808, both of which include Nokia's PureView technology. The PureView 808 uses an oversampling technique that captures a high-megapixel image and condenses it into a lower-megapixel image with impressive clarity and detail. Whereas the Lumia 920's PureView camera features optical image stabilization.

The iPhone 5 was the runner-up to Nokia's handsets, producing images that were slightly darker than the Lumia 920, and not as detailed. Given the low five-lux lighting, this result is not surprising as most smartphone cameras use small sensors that struggle in low-light conditions. The iPhone 5 easily outperformed the HTC One X and the Galaxy S III, both of which produced dark and grainy images.